Curtain-fastening device.



No. 854,073. PATENTED MAY 21, 1907. A. P. BRUOKNER & e. SAYRE.

CURTAIN FASTENING DEVIGE.

APPLICATION I'ILEI) SEER 14,1906.

2 SHEETS-SHEET 1.

No. 535L073. PATENTED MAY 21, 1907. I A. F. BRUCKNER & G. SAYRE.

CURTAIN FASTENING DEVICE.

APPLIQATIOH FILED snr'r.14,1eos.

2 SHEETS-8HEET 2.

' 5555: INvEN-mm W'TNE 5% aual'na eke/(M1 W 01 To all whom, it may concern.-

ARTHUR. F. BRUCKNER AND GEoRe 'sFYRE, OF ELQ-IN, ILLINOIS.

CURTAIN-FASTENING- DEVICE.

Specification of Letters Patent. g

k'atented'lliay 21, 1907.

Application filed September 14,1906. serial No. 334,594.

' Be it known that we, ARTHUR F. BRUCK- v ER and GEORGE SAYRE, citizens of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented certain new and useful Im rovements-in Curtain-Fastening Devices, which thefol lowing is a specification. V

This invention relates to improvements in curtain fasteners adapted especially for use on vehicles. l l

The principal objects of our im 'rovemehts,

is to produce a fastener that will be strong and durable, that will securely hold the curtain, that will not be liable to become inoperative from exposure to the elements, and that will present a neat appearance.

Afurther object'is to produce a button that may be quickly and easily attached to different parts of the frame or body of a vehicle and that may be readily renewed should it become broken or dama ed.

Having these special objects and others of general utility in view, we haveproduced the button or curtain fastener shown" in preferred forms in the accompanying drawing in which Figure'l is a plan view of one of our improved fasteners applied to a curtain, a-fragment of the latter eing shown; Fig. 2 is a horizontal section through the fastener and curtain shown in Fig. l Fig. 3 is a horizontal I section showing a modification of our fastener and the method of attaching same to a portion of a vehicle; Fig. '4 shows in eleva-- tion and section a slightly modified form of fastener; Fig. 5 is a top plan view of the fastener shown in Fig. 4; Fig. 6 is an elevation showing a modified method of attaching the fastener, and Fig. 7 is'a horizontal section through the fastener shown in Fig. 6.

Referring to the details of the drawing as shown in Figs. 1 and 2, the base plate 3 of the fastener is provided with screw. holes 4 through which the attaching screws 19 (Fig. 4) are passed. The plate 3 is formed integrally with the cylindrical domelike body portion 5 the side walls of which are drilled at opposite points to form holes 8 in'which are slidably arranged'studs 9 having heads 10 on their inner ends. The center of the dome 7 of the body portion is drilled vertically to provide a hole for the stem 12 of the lunger 11 which is loosely mounted within the chamber 7, and rests upon the outer end of an expansion coil-spring 14, the

tension of which is exerted to'hold the plunger in the upper part of the chamber 7, whereb the stem 12'and-the studs 9 will be normal rejected from the surface of the dome. T e plunger is formed with a neck or annular grooved portion 13, into which the heads of the studs slide when the stem 12 :is depressed, and pressure is brou ht to bear on the outer ends of the studs suc as would be incident to an attempt to pull the gromet 16 over the dome. I

A screwlug engages a suitable o ening provided t. erefor in the center of the ase 3, and forms a removable bearing for the inner end of the spring 14.

Instead of forming the plug as above set forth, it may be constructed as shown in.

Fig. '3, 4, and7.v In Fig. 3, the plu 2l is provided with an integral stem 22 w 'ch' is adapted to be passed through a hole, as 23, drilled in the woodwork or frame of the vehicle, and has its outer end threaded, as at 24, and equipped with a milled nut 25. The stem, when so constructed, serves as additional attaching means for the fastener, the prmcipal means being the screws 19, 19. If desired, the-plug 27 may have a plain or non-threaded stem 28, as, shown in Fig. 4 which maybe passed through the woodwork and have its end headed over -to hold it against displacement. Or the stem may be formed as a screw 30 for the plug 29, which is threaded and inserted in the base of the fas tener in the manner already described.

In lieu of forming the plunger with a convex surface and a groove 13, .we may form its exterior concave as at 13" in Figs. 3 and 7, the reduced outer portion-serving to permit the retraction of the studs 9 in the manner described.

It will be noted that the outer ends of the studs are rounded, thus facilitating attaching and detaching the curtain 17, the inner edges of the gromet 16 passing easily-over the ends of the studs when the latter are retracted. The button'or extension 12 of the ylsubstituted. Other Should the studs become worn I d the stem of i1szi'lplug become broken, a new plug canbe re utilities in our device will be apparent to those skilled in the art.

Having thus described our inventlon what we claim is 1. A fastening device, compris ng a suitable base, a chambered body portion having axial and lateral o enings in its walls, studs removably and sli ably arranged in the laterahopenings, a plunger removably arranged in the chambered ortion, bearing against said studs, and having an extension project-- ing through the axial opening, and a spring bearing on said plunger.

2; A fastening device comprislng a suitable base, a chambered body portion having axial and lateral openings in its walls, studs slidably arranged in saidlateral openings a plunger slidably arranged in said axial openmg and normally bearing against said studs, a spring engaging said plunger, and a removable plug inserted in said base and forming a bearin for said. spring.

3. A astening device comprising a suitable base, ,a chambered body portion having axial and lateral openings therein, studs slidably arranged in said lateral openin s, a plunger slidably arranged in said axiad opening and bearing against said studs, a spring engaging said plunger to hold it in its projected position, a screw plug forming a closure for said chambered portion and provided with an extension adapted to be secured to a suitable sup ort.

4. A i iistcning device comprising a suitable base having an opening therein, a-body portion projecting from said base with lateral openings therein, and having a chamber registering with said opening, a plug removably mounted in said opening and having a stem projecting therefrom, a coil-spring arranged in said chamber and bearing on said plug, a plunger mounted in said chamber, having a portion projecting through said body portion, and having its inner end bearing on said spring, and studs slidably mounted in said lateral openings and having their inner ends bearing on said plunger.

5. In a fastening device, a chambered body having axial and lateral openings, a push member slidably mounted in said body and consisting of a plunger having a convex portion, a recessed portion and an extension, said extension projecting through said body, and means for normally holding said extension in its projected position.

In testimony whereof we a'l'lix our signatures in presence of two witnesses.

ARTHUR F. BRUCKNER. GEORGE SAYRE. Witnesses:

CnAs. S. Morn, W. D. BROWN. 

